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Finding the Fourth Proportional to 481,345.43, 664,231.41 and 263,512.40

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Solution

The fourth proportional to 481,345.43, 664,231.41 and 263,512.40 is: 363,633.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,345.43 : 664,231.41 = 263,512.40 : x
  2. Step 2: Convert to fraction form
    481,345.43/664,231.41 = 263,512.40/x
  3. Step 3: Cross multiply
    481,345.43x = 664,231.41 × 263,512.40
  4. Step 4: Simplify right side
    481,345.43x = 175,033,213,004.48
  5. Step 5: Solve for x
    x = 175,033,213,004.48/481,345.43
  6. Step 6: Final answer
    x = 363,633.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.